Valve cone angle introduction
The use of a tapered working surface can achieve a larger valve seat sealing pressure, which can improve the sealing and thermal conductivity; the valve has an automatic return when it is seated; it can avoid the airflow turning too large and reduce the flow rate. In addition, with the taper angle, the valve will also be ground relative to the seat when it is seated. This aspect will increase the wear and, on the other hand, squeeze out the deposit on the contact surface and have a self-cleaning effect.